Java Code Examples for javax.crypto.spec.DESKeySpec#isParityAdjusted()

The following examples show how to use javax.crypto.spec.DESKeySpec#isParityAdjusted() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: EncryptionKey.java    From dragonwell8_jdk with GNU General Public License v2.0 4 votes vote down vote up 
/**
 * Generates a sub-sessionkey from a given session key.
 *
 * Used in AcceptSecContextToken and KrbApReq by acceptor- and initiator-
 * side respectively.
 */
public EncryptionKey(EncryptionKey key) throws KrbCryptoException {
    // generate random sub-session key
    keyValue = Confounder.bytes(key.keyValue.length);
    for (int i = 0; i < keyValue.length; i++) {
      keyValue[i] ^= key.keyValue[i];
    }
    keyType = key.keyType;

    // check for key parity and weak keys
    try {
        // check for DES key
        if ((keyType == EncryptedData.ETYPE_DES_CBC_MD5) ||
            (keyType == EncryptedData.ETYPE_DES_CBC_CRC)) {
            // fix DES key parity
            if (!DESKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des.set_parity(keyValue);
            }
            // check for weak key
            if (DESKeySpec.isWeak(keyValue, 0)) {
                keyValue[7] = (byte)(keyValue[7] ^ 0xF0);
            }
        }
        // check for 3DES key
        if (keyType == EncryptedData.ETYPE_DES3_CBC_HMAC_SHA1_KD) {
            // fix 3DES key parity
            if (!DESedeKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des3.parityFix(keyValue);
            }
            // check for weak keys
            byte[] oneKey = new byte[8];
            for (int i=0; i<keyValue.length; i+=8) {
                System.arraycopy(keyValue, i, oneKey, 0, 8);
                if (DESKeySpec.isWeak(oneKey, 0)) {
                    keyValue[i+7] = (byte)(keyValue[i+7] ^ 0xF0);
                }
            }
        }
    } catch (GeneralSecurityException e) {
        KrbCryptoException ke = new KrbCryptoException(e.getMessage());
        ke.initCause(e);
        throw ke;
    }
}
Example 2
Source File: EncryptionKey.java    From TencentKona-8 with GNU General Public License v2.0 4 votes vote down vote up 
/**
 * Generates a sub-sessionkey from a given session key.
 *
 * Used in AcceptSecContextToken and KrbApReq by acceptor- and initiator-
 * side respectively.
 */
public EncryptionKey(EncryptionKey key) throws KrbCryptoException {
    // generate random sub-session key
    keyValue = Confounder.bytes(key.keyValue.length);
    for (int i = 0; i < keyValue.length; i++) {
      keyValue[i] ^= key.keyValue[i];
    }
    keyType = key.keyType;

    // check for key parity and weak keys
    try {
        // check for DES key
        if ((keyType == EncryptedData.ETYPE_DES_CBC_MD5) ||
            (keyType == EncryptedData.ETYPE_DES_CBC_CRC)) {
            // fix DES key parity
            if (!DESKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des.set_parity(keyValue);
            }
            // check for weak key
            if (DESKeySpec.isWeak(keyValue, 0)) {
                keyValue[7] = (byte)(keyValue[7] ^ 0xF0);
            }
        }
        // check for 3DES key
        if (keyType == EncryptedData.ETYPE_DES3_CBC_HMAC_SHA1_KD) {
            // fix 3DES key parity
            if (!DESedeKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des3.parityFix(keyValue);
            }
            // check for weak keys
            byte[] oneKey = new byte[8];
            for (int i=0; i<keyValue.length; i+=8) {
                System.arraycopy(keyValue, i, oneKey, 0, 8);
                if (DESKeySpec.isWeak(oneKey, 0)) {
                    keyValue[i+7] = (byte)(keyValue[i+7] ^ 0xF0);
                }
            }
        }
    } catch (GeneralSecurityException e) {
        KrbCryptoException ke = new KrbCryptoException(e.getMessage());
        ke.initCause(e);
        throw ke;
    }
}
Example 3
Source File: EncryptionKey.java    From jdk8u60 with GNU General Public License v2.0 4 votes vote down vote up 
/**
 * Generates a sub-sessionkey from a given session key.
 *
 * Used in AcceptSecContextToken and KrbApReq by acceptor- and initiator-
 * side respectively.
 */
public EncryptionKey(EncryptionKey key) throws KrbCryptoException {
    // generate random sub-session key
    keyValue = Confounder.bytes(key.keyValue.length);
    for (int i = 0; i < keyValue.length; i++) {
      keyValue[i] ^= key.keyValue[i];
    }
    keyType = key.keyType;

    // check for key parity and weak keys
    try {
        // check for DES key
        if ((keyType == EncryptedData.ETYPE_DES_CBC_MD5) ||
            (keyType == EncryptedData.ETYPE_DES_CBC_CRC)) {
            // fix DES key parity
            if (!DESKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des.set_parity(keyValue);
            }
            // check for weak key
            if (DESKeySpec.isWeak(keyValue, 0)) {
                keyValue[7] = (byte)(keyValue[7] ^ 0xF0);
            }
        }
        // check for 3DES key
        if (keyType == EncryptedData.ETYPE_DES3_CBC_HMAC_SHA1_KD) {
            // fix 3DES key parity
            if (!DESedeKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des3.parityFix(keyValue);
            }
            // check for weak keys
            byte[] oneKey = new byte[8];
            for (int i=0; i<keyValue.length; i+=8) {
                System.arraycopy(keyValue, i, oneKey, 0, 8);
                if (DESKeySpec.isWeak(oneKey, 0)) {
                    keyValue[i+7] = (byte)(keyValue[i+7] ^ 0xF0);
                }
            }
        }
    } catch (GeneralSecurityException e) {
        KrbCryptoException ke = new KrbCryptoException(e.getMessage());
        ke.initCause(e);
        throw ke;
    }
}
Example 4
Source File: EncryptionKey.java    From openjdk-jdk8u with GNU General Public License v2.0 4 votes vote down vote up 
/**
 * Generates a sub-sessionkey from a given session key.
 *
 * Used in AcceptSecContextToken and KrbApReq by acceptor- and initiator-
 * side respectively.
 */
public EncryptionKey(EncryptionKey key) throws KrbCryptoException {
    // generate random sub-session key
    keyValue = Confounder.bytes(key.keyValue.length);
    for (int i = 0; i < keyValue.length; i++) {
      keyValue[i] ^= key.keyValue[i];
    }
    keyType = key.keyType;

    // check for key parity and weak keys
    try {
        // check for DES key
        if ((keyType == EncryptedData.ETYPE_DES_CBC_MD5) ||
            (keyType == EncryptedData.ETYPE_DES_CBC_CRC)) {
            // fix DES key parity
            if (!DESKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des.set_parity(keyValue);
            }
            // check for weak key
            if (DESKeySpec.isWeak(keyValue, 0)) {
                keyValue[7] = (byte)(keyValue[7] ^ 0xF0);
            }
        }
        // check for 3DES key
        if (keyType == EncryptedData.ETYPE_DES3_CBC_HMAC_SHA1_KD) {
            // fix 3DES key parity
            if (!DESedeKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des3.parityFix(keyValue);
            }
            // check for weak keys
            byte[] oneKey = new byte[8];
            for (int i=0; i<keyValue.length; i+=8) {
                System.arraycopy(keyValue, i, oneKey, 0, 8);
                if (DESKeySpec.isWeak(oneKey, 0)) {
                    keyValue[i+7] = (byte)(keyValue[i+7] ^ 0xF0);
                }
            }
        }
    } catch (GeneralSecurityException e) {
        KrbCryptoException ke = new KrbCryptoException(e.getMessage());
        ke.initCause(e);
        throw ke;
    }
}
Example 5
Source File: EncryptionKey.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 4 votes vote down vote up 
/**
 * Generates a sub-sessionkey from a given session key.
 *
 * Used in AcceptSecContextToken and KrbApReq by acceptor- and initiator-
 * side respectively.
 */
public EncryptionKey(EncryptionKey key) throws KrbCryptoException {
    // generate random sub-session key
    keyValue = Confounder.bytes(key.keyValue.length);
    for (int i = 0; i < keyValue.length; i++) {
      keyValue[i] ^= key.keyValue[i];
    }
    keyType = key.keyType;

    // check for key parity and weak keys
    try {
        // check for DES key
        if ((keyType == EncryptedData.ETYPE_DES_CBC_MD5) ||
            (keyType == EncryptedData.ETYPE_DES_CBC_CRC)) {
            // fix DES key parity
            if (!DESKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des.set_parity(keyValue);
            }
            // check for weak key
            if (DESKeySpec.isWeak(keyValue, 0)) {
                keyValue[7] = (byte)(keyValue[7] ^ 0xF0);
            }
        }
        // check for 3DES key
        if (keyType == EncryptedData.ETYPE_DES3_CBC_HMAC_SHA1_KD) {
            // fix 3DES key parity
            if (!DESedeKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des3.parityFix(keyValue);
            }
            // check for weak keys
            byte[] oneKey = new byte[8];
            for (int i=0; i<keyValue.length; i+=8) {
                System.arraycopy(keyValue, i, oneKey, 0, 8);
                if (DESKeySpec.isWeak(oneKey, 0)) {
                    keyValue[i+7] = (byte)(keyValue[i+7] ^ 0xF0);
                }
            }
        }
    } catch (GeneralSecurityException e) {
        KrbCryptoException ke = new KrbCryptoException(e.getMessage());
        ke.initCause(e);
        throw ke;
    }
}
Example 6
Source File: EncryptionKey.java    From openjdk-jdk9 with GNU General Public License v2.0 4 votes vote down vote up 
/**
 * Generates a sub-sessionkey from a given session key.
 *
 * Used in AcceptSecContextToken and KrbApReq by acceptor- and initiator-
 * side respectively.
 */
public EncryptionKey(EncryptionKey key) throws KrbCryptoException {
    // generate random sub-session key
    keyValue = Confounder.bytes(key.keyValue.length);
    for (int i = 0; i < keyValue.length; i++) {
      keyValue[i] ^= key.keyValue[i];
    }
    keyType = key.keyType;

    // check for key parity and weak keys
    try {
        // check for DES key
        if ((keyType == EncryptedData.ETYPE_DES_CBC_MD5) ||
            (keyType == EncryptedData.ETYPE_DES_CBC_CRC)) {
            // fix DES key parity
            if (!DESKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des.set_parity(keyValue);
            }
            // check for weak key
            if (DESKeySpec.isWeak(keyValue, 0)) {
                keyValue[7] = (byte)(keyValue[7] ^ 0xF0);
            }
        }
        // check for 3DES key
        if (keyType == EncryptedData.ETYPE_DES3_CBC_HMAC_SHA1_KD) {
            // fix 3DES key parity
            if (!DESedeKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des3.parityFix(keyValue);
            }
            // check for weak keys
            byte[] oneKey = new byte[8];
            for (int i=0; i<keyValue.length; i+=8) {
                System.arraycopy(keyValue, i, oneKey, 0, 8);
                if (DESKeySpec.isWeak(oneKey, 0)) {
                    keyValue[i+7] = (byte)(keyValue[i+7] ^ 0xF0);
                }
            }
        }
    } catch (GeneralSecurityException e) {
        KrbCryptoException ke = new KrbCryptoException(e.getMessage());
        ke.initCause(e);
        throw ke;
    }
}
Example 7
Source File: EncryptionKey.java    From jdk8u-jdk with GNU General Public License v2.0 4 votes vote down vote up 
/**
 * Generates a sub-sessionkey from a given session key.
 *
 * Used in AcceptSecContextToken and KrbApReq by acceptor- and initiator-
 * side respectively.
 */
public EncryptionKey(EncryptionKey key) throws KrbCryptoException {
    // generate random sub-session key
    keyValue = Confounder.bytes(key.keyValue.length);
    for (int i = 0; i < keyValue.length; i++) {
      keyValue[i] ^= key.keyValue[i];
    }
    keyType = key.keyType;

    // check for key parity and weak keys
    try {
        // check for DES key
        if ((keyType == EncryptedData.ETYPE_DES_CBC_MD5) ||
            (keyType == EncryptedData.ETYPE_DES_CBC_CRC)) {
            // fix DES key parity
            if (!DESKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des.set_parity(keyValue);
            }
            // check for weak key
            if (DESKeySpec.isWeak(keyValue, 0)) {
                keyValue[7] = (byte)(keyValue[7] ^ 0xF0);
            }
        }
        // check for 3DES key
        if (keyType == EncryptedData.ETYPE_DES3_CBC_HMAC_SHA1_KD) {
            // fix 3DES key parity
            if (!DESedeKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des3.parityFix(keyValue);
            }
            // check for weak keys
            byte[] oneKey = new byte[8];
            for (int i=0; i<keyValue.length; i+=8) {
                System.arraycopy(keyValue, i, oneKey, 0, 8);
                if (DESKeySpec.isWeak(oneKey, 0)) {
                    keyValue[i+7] = (byte)(keyValue[i+7] ^ 0xF0);
                }
            }
        }
    } catch (GeneralSecurityException e) {
        KrbCryptoException ke = new KrbCryptoException(e.getMessage());
        ke.initCause(e);
        throw ke;
    }
}
Example 8
Source File: EncryptionKey.java    From hottub with GNU General Public License v2.0 4 votes vote down vote up 
/**
 * Generates a sub-sessionkey from a given session key.
 *
 * Used in AcceptSecContextToken and KrbApReq by acceptor- and initiator-
 * side respectively.
 */
public EncryptionKey(EncryptionKey key) throws KrbCryptoException {
    // generate random sub-session key
    keyValue = Confounder.bytes(key.keyValue.length);
    for (int i = 0; i < keyValue.length; i++) {
      keyValue[i] ^= key.keyValue[i];
    }
    keyType = key.keyType;

    // check for key parity and weak keys
    try {
        // check for DES key
        if ((keyType == EncryptedData.ETYPE_DES_CBC_MD5) ||
            (keyType == EncryptedData.ETYPE_DES_CBC_CRC)) {
            // fix DES key parity
            if (!DESKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des.set_parity(keyValue);
            }
            // check for weak key
            if (DESKeySpec.isWeak(keyValue, 0)) {
                keyValue[7] = (byte)(keyValue[7] ^ 0xF0);
            }
        }
        // check for 3DES key
        if (keyType == EncryptedData.ETYPE_DES3_CBC_HMAC_SHA1_KD) {
            // fix 3DES key parity
            if (!DESedeKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des3.parityFix(keyValue);
            }
            // check for weak keys
            byte[] oneKey = new byte[8];
            for (int i=0; i<keyValue.length; i+=8) {
                System.arraycopy(keyValue, i, oneKey, 0, 8);
                if (DESKeySpec.isWeak(oneKey, 0)) {
                    keyValue[i+7] = (byte)(keyValue[i+7] ^ 0xF0);
                }
            }
        }
    } catch (GeneralSecurityException e) {
        KrbCryptoException ke = new KrbCryptoException(e.getMessage());
        ke.initCause(e);
        throw ke;
    }
}
Example 9
Source File: EncryptionKey.java    From openjdk-8-source with GNU General Public License v2.0 4 votes vote down vote up 
/**
 * Generates a sub-sessionkey from a given session key.
 *
 * Used in AcceptSecContextToken and KrbApReq by acceptor- and initiator-
 * side respectively.
 */
public EncryptionKey(EncryptionKey key) throws KrbCryptoException {
    // generate random sub-session key
    keyValue = Confounder.bytes(key.keyValue.length);
    for (int i = 0; i < keyValue.length; i++) {
      keyValue[i] ^= key.keyValue[i];
    }
    keyType = key.keyType;

    // check for key parity and weak keys
    try {
        // check for DES key
        if ((keyType == EncryptedData.ETYPE_DES_CBC_MD5) ||
            (keyType == EncryptedData.ETYPE_DES_CBC_CRC)) {
            // fix DES key parity
            if (!DESKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des.set_parity(keyValue);
            }
            // check for weak key
            if (DESKeySpec.isWeak(keyValue, 0)) {
                keyValue[7] = (byte)(keyValue[7] ^ 0xF0);
            }
        }
        // check for 3DES key
        if (keyType == EncryptedData.ETYPE_DES3_CBC_HMAC_SHA1_KD) {
            // fix 3DES key parity
            if (!DESedeKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des3.parityFix(keyValue);
            }
            // check for weak keys
            byte[] oneKey = new byte[8];
            for (int i=0; i<keyValue.length; i+=8) {
                System.arraycopy(keyValue, i, oneKey, 0, 8);
                if (DESKeySpec.isWeak(oneKey, 0)) {
                    keyValue[i+7] = (byte)(keyValue[i+7] ^ 0xF0);
                }
            }
        }
    } catch (GeneralSecurityException e) {
        KrbCryptoException ke = new KrbCryptoException(e.getMessage());
        ke.initCause(e);
        throw ke;
    }
}
Example 10
Source File: EncryptionKey.java    From openjdk-8 with GNU General Public License v2.0 4 votes vote down vote up 
/**
 * Generates a sub-sessionkey from a given session key.
 *
 * Used in AcceptSecContextToken and KrbApReq by acceptor- and initiator-
 * side respectively.
 */
public EncryptionKey(EncryptionKey key) throws KrbCryptoException {
    // generate random sub-session key
    keyValue = Confounder.bytes(key.keyValue.length);
    for (int i = 0; i < keyValue.length; i++) {
      keyValue[i] ^= key.keyValue[i];
    }
    keyType = key.keyType;

    // check for key parity and weak keys
    try {
        // check for DES key
        if ((keyType == EncryptedData.ETYPE_DES_CBC_MD5) ||
            (keyType == EncryptedData.ETYPE_DES_CBC_CRC)) {
            // fix DES key parity
            if (!DESKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des.set_parity(keyValue);
            }
            // check for weak key
            if (DESKeySpec.isWeak(keyValue, 0)) {
                keyValue[7] = (byte)(keyValue[7] ^ 0xF0);
            }
        }
        // check for 3DES key
        if (keyType == EncryptedData.ETYPE_DES3_CBC_HMAC_SHA1_KD) {
            // fix 3DES key parity
            if (!DESedeKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des3.parityFix(keyValue);
            }
            // check for weak keys
            byte[] oneKey = new byte[8];
            for (int i=0; i<keyValue.length; i+=8) {
                System.arraycopy(keyValue, i, oneKey, 0, 8);
                if (DESKeySpec.isWeak(oneKey, 0)) {
                    keyValue[i+7] = (byte)(keyValue[i+7] ^ 0xF0);
                }
            }
        }
    } catch (GeneralSecurityException e) {
        KrbCryptoException ke = new KrbCryptoException(e.getMessage());
        ke.initCause(e);
        throw ke;
    }
}
Example 11
Source File: EncryptionKey.java    From jdk8u_jdk with GNU General Public License v2.0 4 votes vote down vote up 
/**
 * Generates a sub-sessionkey from a given session key.
 *
 * Used in AcceptSecContextToken and KrbApReq by acceptor- and initiator-
 * side respectively.
 */
public EncryptionKey(EncryptionKey key) throws KrbCryptoException {
    // generate random sub-session key
    keyValue = Confounder.bytes(key.keyValue.length);
    for (int i = 0; i < keyValue.length; i++) {
      keyValue[i] ^= key.keyValue[i];
    }
    keyType = key.keyType;

    // check for key parity and weak keys
    try {
        // check for DES key
        if ((keyType == EncryptedData.ETYPE_DES_CBC_MD5) ||
            (keyType == EncryptedData.ETYPE_DES_CBC_CRC)) {
            // fix DES key parity
            if (!DESKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des.set_parity(keyValue);
            }
            // check for weak key
            if (DESKeySpec.isWeak(keyValue, 0)) {
                keyValue[7] = (byte)(keyValue[7] ^ 0xF0);
            }
        }
        // check for 3DES key
        if (keyType == EncryptedData.ETYPE_DES3_CBC_HMAC_SHA1_KD) {
            // fix 3DES key parity
            if (!DESedeKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des3.parityFix(keyValue);
            }
            // check for weak keys
            byte[] oneKey = new byte[8];
            for (int i=0; i<keyValue.length; i+=8) {
                System.arraycopy(keyValue, i, oneKey, 0, 8);
                if (DESKeySpec.isWeak(oneKey, 0)) {
                    keyValue[i+7] = (byte)(keyValue[i+7] ^ 0xF0);
                }
            }
        }
    } catch (GeneralSecurityException e) {
        KrbCryptoException ke = new KrbCryptoException(e.getMessage());
        ke.initCause(e);
        throw ke;
    }
}
Example 12
Source File: EncryptionKey.java    From jdk8u-jdk with GNU General Public License v2.0 4 votes vote down vote up 
/**
 * Generates a sub-sessionkey from a given session key.
 *
 * Used in AcceptSecContextToken and KrbApReq by acceptor- and initiator-
 * side respectively.
 */
public EncryptionKey(EncryptionKey key) throws KrbCryptoException {
    // generate random sub-session key
    keyValue = Confounder.bytes(key.keyValue.length);
    for (int i = 0; i < keyValue.length; i++) {
      keyValue[i] ^= key.keyValue[i];
    }
    keyType = key.keyType;

    // check for key parity and weak keys
    try {
        // check for DES key
        if ((keyType == EncryptedData.ETYPE_DES_CBC_MD5) ||
            (keyType == EncryptedData.ETYPE_DES_CBC_CRC)) {
            // fix DES key parity
            if (!DESKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des.set_parity(keyValue);
            }
            // check for weak key
            if (DESKeySpec.isWeak(keyValue, 0)) {
                keyValue[7] = (byte)(keyValue[7] ^ 0xF0);
            }
        }
        // check for 3DES key
        if (keyType == EncryptedData.ETYPE_DES3_CBC_HMAC_SHA1_KD) {
            // fix 3DES key parity
            if (!DESedeKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des3.parityFix(keyValue);
            }
            // check for weak keys
            byte[] oneKey = new byte[8];
            for (int i=0; i<keyValue.length; i+=8) {
                System.arraycopy(keyValue, i, oneKey, 0, 8);
                if (DESKeySpec.isWeak(oneKey, 0)) {
                    keyValue[i+7] = (byte)(keyValue[i+7] ^ 0xF0);
                }
            }
        }
    } catch (GeneralSecurityException e) {
        KrbCryptoException ke = new KrbCryptoException(e.getMessage());
        ke.initCause(e);
        throw ke;
    }
}
Example 13
Source File: EncryptionKey.java    From jdk8u-dev-jdk with GNU General Public License v2.0 4 votes vote down vote up 
/**
 * Generates a sub-sessionkey from a given session key.
 *
 * Used in AcceptSecContextToken and KrbApReq by acceptor- and initiator-
 * side respectively.
 */
public EncryptionKey(EncryptionKey key) throws KrbCryptoException {
    // generate random sub-session key
    keyValue = Confounder.bytes(key.keyValue.length);
    for (int i = 0; i < keyValue.length; i++) {
      keyValue[i] ^= key.keyValue[i];
    }
    keyType = key.keyType;

    // check for key parity and weak keys
    try {
        // check for DES key
        if ((keyType == EncryptedData.ETYPE_DES_CBC_MD5) ||
            (keyType == EncryptedData.ETYPE_DES_CBC_CRC)) {
            // fix DES key parity
            if (!DESKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des.set_parity(keyValue);
            }
            // check for weak key
            if (DESKeySpec.isWeak(keyValue, 0)) {
                keyValue[7] = (byte)(keyValue[7] ^ 0xF0);
            }
        }
        // check for 3DES key
        if (keyType == EncryptedData.ETYPE_DES3_CBC_HMAC_SHA1_KD) {
            // fix 3DES key parity
            if (!DESedeKeySpec.isParityAdjusted(keyValue, 0)) {
                keyValue = Des3.parityFix(keyValue);
            }
            // check for weak keys
            byte[] oneKey = new byte[8];
            for (int i=0; i<keyValue.length; i+=8) {
                System.arraycopy(keyValue, i, oneKey, 0, 8);
                if (DESKeySpec.isWeak(oneKey, 0)) {
                    keyValue[i+7] = (byte)(keyValue[i+7] ^ 0xF0);
                }
            }
        }
    } catch (GeneralSecurityException e) {
        KrbCryptoException ke = new KrbCryptoException(e.getMessage());
        ke.initCause(e);
        throw ke;
    }
}